noun
- a mass of igneous rock that has been injected between rock strata causing a bulge
Usage: geology
Examples
- The geologist identified a laccolith formation in the sedimentary layers.
- Laccoliths form when magma intrudes between existing rock beds.
- The dome-shaped hill was created by an ancient laccolith.
- Students studied the laccolith’s impact on surrounding rock structures.
- The laccolith pushed up the overlying strata into a distinctive bulge.
- Erosion eventually exposed the hardened laccolith beneath the softer rocks.